This confuses me.Īt first, I thought that SM2 hardware didn't support 16-bit floating point frame buffers/texture buffers.
According to the Wikipedia page on HDRR, most games only use it on SM3 because SM3 supports FP16 blending. In many newer games (Oblivion, Splinter-Cell, etc) HDR is only available on cards which support SM3. I am currently planning an implementation of HDR. Ok, first I think I understand this topic, but I guess I was wrong.
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